From 95e3d8dd9d72556123caac136cc2098dc3026207 Mon Sep 17 00:00:00 2001
From: aynazar-sylyyew-dev <sylyyewsylyyew5@gmail.com>
Date: Tue, 29 Sep 2026 10:39:44 +0500
Subject: [PATCH 1/3] ci: add per-page gzip budget check with 100 KB limit
 (proof that CI fails)

---
 .github/workflows/deploy.yml |   5 ++
 package.json                 |   4 +-
 scripts/check-size.mjs       | 118 +++++++++++++++++++++++++++++++++++
 3 files changed, 126 insertions(+), 1 deletion(-)
 create mode 100644 scripts/check-size.mjs

diff --git a/.github/workflows/deploy.yml b/.github/workflows/deploy.yml
index 89567ff..d94b2a2 100644
--- a/.github/workflows/deploy.yml
+++ b/.github/workflows/deploy.yml
@@ -43,6 +43,10 @@ jobs:
             test -s "out/$f" || { echo "::error::out/$f is missing"; exit 1; }
           done
 
+      # 🛡️ Hard limit: проверка веса JS-бандлов на каждой странице
+      - name: Check bundle size limit
+        run: npm run check:size
+
       - uses: actions/upload-pages-artifact@v5
         if: github.event_name != 'pull_request'
         with:
@@ -61,3 +65,4 @@ jobs:
     steps:
       - id: deployment
         uses: actions/deploy-pages@v5
+        
\ No newline at end of file
diff --git a/package.json b/package.json
index f77d4da..fdfb5e0 100644
--- a/package.json
+++ b/package.json
@@ -4,7 +4,9 @@
   "private": true,
   "scripts": {
     "dev": "next dev",
-    "build": "next build"
+    "build": "next build",
+    "start": "next start",
+    "check:size": "node scripts/check-size.mjs"
   },
   "dependencies": {
     "next": "16.3.6",
diff --git a/scripts/check-size.mjs b/scripts/check-size.mjs
new file mode 100644
index 0000000..7b0caa4
--- /dev/null
+++ b/scripts/check-size.mjs
@@ -0,0 +1,118 @@
+// scripts/check-size.mjs
+import fs from 'node:fs/promises';
+import path from 'node:path';
+import zlib from 'node:zlib';
+
+// --- КОНФИГУРАЦИЯ ---
+// Лимит размера для каждой страницы (в КБ). 
+// По заданию он должен быть константой наверху.
+const LIMIT_KB = 100;
+const OUT_DIR = 'out';
+
+async function findHtmlFiles(dir) {
+    let entries;
+    try {
+        entries = await fs.readdir(dir, { withFileTypes: true });
+    } catch (err) {
+        return [];
+    }
+
+    const files = await Promise.all(entries.map(async (entry) => {
+        const fullPath = path.join(dir, entry.name);
+        if (entry.isDirectory()) {
+            return findHtmlFiles(fullPath);
+        } else if (entry.isFile() && entry.name === 'index.html') {
+            return fullPath;
+        }
+        return null;
+    }));
+
+    return files.flat().filter(Boolean);
+}
+
+async function getGzipSize(filePath) {
+    try {
+        const buffer = await fs.readFile(filePath);
+        // Используем zlib.gzipSync как указано в требованиях
+        const gzipped = zlib.gzipSync(buffer);
+        return gzipped.length;
+    } catch (err) {
+        // Если файл не читается (например, это внешний URL), просто возвращаем 0
+        return 0;
+    }
+}
+
+async function main() {
+    const htmlFiles = await findHtmlFiles(OUT_DIR);
+
+    if (htmlFiles.length === 0) {
+        console.error(`❌ No index.html files found in ${OUT_DIR}/. Did you run 'npm run build' first?`);
+        process.exit(1);
+    }
+
+    const results = [];
+    let hasFailed = false;
+
+    for (const htmlFile of htmlFiles) {
+        const html = await fs.readFile(htmlFile, 'utf8');
+
+        // Надежный regex для поиска <script src="..."> и <script src='...'>
+        const regex = /<script\b[^>]*\bsrc=["']([^"']+)["'][^>]*>/g;
+        const scriptPaths = new Set();
+        let match;
+
+        while ((match = regex.exec(html)) !== null) {
+            const src = match[1];
+            // Нас интересуют только внутренние скрипты Next.js
+            if (src.includes('/_next/')) {
+                // Убираем начальный слэш, query-параметры (?v=123) и хэши (#app)
+                const cleanSrc = (src.startsWith('/') ? src.substring(1) : src).split('?')[0].split('#')[0];
+                const localPath = path.join(OUT_DIR, cleanSrc);
+                scriptPaths.add(localPath);
+            }
+        }
+
+        let totalSize = 0;
+        for (const scriptPath of scriptPaths) {
+            totalSize += await getGzipSize(scriptPath);
+        }
+
+        // Переводим байты в килобайты и округляем до сотых
+        const sizeKB = Math.round((totalSize / 1024) * 100) / 100;
+
+        // Вычисляем путь страницы (например, /, /ru/, /projects/)
+        const relDir = path.relative(OUT_DIR, path.dirname(htmlFile));
+        let route = relDir === '' ? '/' : '/' + relDir.replace(/\\/g, '/') + '/';
+
+        const isOverLimit = sizeKB > LIMIT_KB;
+        if (isOverLimit) {
+            hasFailed = true;
+        }
+
+        results.push({ route, sizeKB, isOverLimit });
+    }
+
+    // Сортируем по алфавиту для красивого вывода
+    results.sort((a, b) => a.route.localeCompare(b.route));
+
+    // Печатаем таблицу
+    console.log('Page           | KB gzip (Limit: ' + LIMIT_KB + ' KB)');
+    console.log('-------------- | ---------------------------');
+    for (const res of results) {
+        const icon = res.isOverLimit ? '❌' : '✅';
+        const paddedRoute = res.route.padEnd(14);
+        console.log(`${paddedRoute} | ${res.sizeKB} KB ${icon}`);
+    }
+
+    if (hasFailed) {
+        console.error(`\n❌ Error: One or more pages exceed the limit of ${LIMIT_KB} KB gzip.`);
+        process.exit(1); // Выход с кодом 1 ломает CI
+    } else {
+        console.log(`\n✅ Success: All pages are under the limit of ${LIMIT_KB} KB gzip.`);
+    }
+}
+
+main().catch((err) => {
+    console.error('An unexpected error occurred:', err);
+    process.exit(1);
+});

From 87644c88ad48fb24fe7b665bc801ac1b4b95ca56 Mon Sep 17 00:00:00 2001
From: aynazar-sylyyew-dev <sylyyewsylyyew5@gmail.com>
Date: Tue, 29 Sep 2026 10:40:58 +0500
Subject: [PATCH 2/3] ci: restore budget to 250 KB

---
 scripts/check-size.mjs | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/scripts/check-size.mjs b/scripts/check-size.mjs
index 7b0caa4..6fb2d34 100644
--- a/scripts/check-size.mjs
+++ b/scripts/check-size.mjs
@@ -6,7 +6,7 @@ import zlib from 'node:zlib';
 // --- КОНФИГУРАЦИЯ ---
 // Лимит размера для каждой страницы (в КБ). 
 // По заданию он должен быть константой наверху.
-const LIMIT_KB = 100;
+const LIMIT_KB = 250;
 const OUT_DIR = 'out';
 
 async function findHtmlFiles(dir) {

From 77030863fc5b716bab30428106d0be9b15bc8524 Mon Sep 17 00:00:00 2001
From: aynazar-sylyyew-dev <sylyyewsylyyew5@gmail.com>
Date: Tue, 29 Sep 2026 11:07:56 +0500
Subject: [PATCH 3/3] ci: fail on missing /_next chunks, drop unsupported next
 start, fix deploy.yml EOF

---
 .github/workflows/deploy.yml |   1 -
 package.json                 |   3 +-
 scripts/check-size.mjs       | 107 +++++++++++++++++------------------
 3 files changed, 54 insertions(+), 57 deletions(-)

diff --git a/.github/workflows/deploy.yml b/.github/workflows/deploy.yml
index d94b2a2..f14b668 100644
--- a/.github/workflows/deploy.yml
+++ b/.github/workflows/deploy.yml
@@ -65,4 +65,3 @@ jobs:
     steps:
       - id: deployment
         uses: actions/deploy-pages@v5
-        
\ No newline at end of file
diff --git a/package.json b/package.json
index fdfb5e0..ef548f7 100644
--- a/package.json
+++ b/package.json
@@ -2,10 +2,9 @@
   "name": "shapak-apps-site",
   "version": "0.1.0",
   "private": true,
-  "scripts": {
+    "scripts": {
     "dev": "next dev",
     "build": "next build",
-    "start": "next start",
     "check:size": "node scripts/check-size.mjs"
   },
   "dependencies": {
diff --git a/scripts/check-size.mjs b/scripts/check-size.mjs
index 6fb2d34..3f561d6 100644
--- a/scripts/check-size.mjs
+++ b/scripts/check-size.mjs
@@ -3,9 +3,8 @@ import fs from 'node:fs/promises';
 import path from 'node:path';
 import zlib from 'node:zlib';
 
-// --- КОНФИГУРАЦИЯ ---
-// Лимит размера для каждой страницы (в КБ). 
-// По заданию он должен быть константой наверху.
+// --- CONFIG ---
+// Per-page gzip budget in KB. Single constant, as required by issue #6.
 const LIMIT_KB = 250;
 const OUT_DIR = 'out';
 
@@ -13,33 +12,25 @@ async function findHtmlFiles(dir) {
     let entries;
     try {
         entries = await fs.readdir(dir, { withFileTypes: true });
-    } catch (err) {
+    } catch {
         return [];
     }
 
-    const files = await Promise.all(entries.map(async (entry) => {
-        const fullPath = path.join(dir, entry.name);
-        if (entry.isDirectory()) {
-            return findHtmlFiles(fullPath);
-        } else if (entry.isFile() && entry.name === 'index.html') {
-            return fullPath;
-        }
-        return null;
-    }));
-
-    return files.flat().filter(Boolean);
+    const nested = await Promise.all(
+        entries.map((entry) => {
+            const fullPath = path.join(dir, entry.name);
+            if (entry.isDirectory()) return findHtmlFiles(fullPath);
+            if (entry.isFile() && entry.name === 'index.html') return fullPath;
+            return null;
+        }),
+    );
+    return nested.flat().filter(Boolean);
 }
 
+// No try/catch here: a missing file must throw, never silently count as 0 KB.
 async function getGzipSize(filePath) {
-    try {
-        const buffer = await fs.readFile(filePath);
-        // Используем zlib.gzipSync как указано в требованиях
-        const gzipped = zlib.gzipSync(buffer);
-        return gzipped.length;
-    } catch (err) {
-        // Если файл не читается (например, это внешний URL), просто возвращаем 0
-        return 0;
-    }
+    const buffer = await fs.readFile(filePath);
+    return zlib.gzipSync(buffer).length;
 }
 
 async function main() {
@@ -51,68 +42,76 @@ async function main() {
     }
 
     const results = [];
+    const missing = [];
     let hasFailed = false;
 
     for (const htmlFile of htmlFiles) {
         const html = await fs.readFile(htmlFile, 'utf8');
 
-        // Надежный regex для поиска <script src="..."> и <script src='...'>
+        const relDir = path.relative(OUT_DIR, path.dirname(htmlFile));
+        const route = relDir === '' ? '/' : '/' + relDir.split(path.sep).join('/') + '/';
+
         const regex = /<script\b[^>]*\bsrc=["']([^"']+)["'][^>]*>/g;
         const scriptPaths = new Set();
         let match;
-
         while ((match = regex.exec(html)) !== null) {
             const src = match[1];
-            // Нас интересуют только внутренние скрипты Next.js
-            if (src.includes('/_next/')) {
-                // Убираем начальный слэш, query-параметры (?v=123) и хэши (#app)
-                const cleanSrc = (src.startsWith('/') ? src.substring(1) : src).split('?')[0].split('#')[0];
-                const localPath = path.join(OUT_DIR, cleanSrc);
-                scriptPaths.add(localPath);
-            }
+            // Only local Next.js assets: a full URL must never map to a local path.
+            if (!src.startsWith('/_next/')) continue;
+            const cleanSrc = src.substring(1).split('?')[0].split('#')[0];
+            scriptPaths.add(path.join(OUT_DIR, cleanSrc));
         }
 
         let totalSize = 0;
         for (const scriptPath of scriptPaths) {
-            totalSize += await getGzipSize(scriptPath);
+            try {
+                totalSize += await getGzipSize(scriptPath);
+            } catch (err) {
+                // A referenced chunk that does not exist is a FATAL error, not 0 KB.
+                if (err.code === 'ENOENT') {
+                    missing.push({ route, file: scriptPath });
+                } else {
+                    throw err;
+                }
+            }
         }
 
-        // Переводим байты в килобайты и округляем до сотых
         const sizeKB = Math.round((totalSize / 1024) * 100) / 100;
-
-        // Вычисляем путь страницы (например, /, /ru/, /projects/)
-        const relDir = path.relative(OUT_DIR, path.dirname(htmlFile));
-        let route = relDir === '' ? '/' : '/' + relDir.replace(/\\/g, '/') + '/';
-
         const isOverLimit = sizeKB > LIMIT_KB;
-        if (isOverLimit) {
-            hasFailed = true;
-        }
-
+        if (isOverLimit) hasFailed = true;
         results.push({ route, sizeKB, isOverLimit });
     }
 
-    // Сортируем по алфавиту для красивого вывода
     results.sort((a, b) => a.route.localeCompare(b.route));
 
-    // Печатаем таблицу
-    console.log('Page           | KB gzip (Limit: ' + LIMIT_KB + ' KB)');
+    console.log(`Page           | KB gzip (Limit: ${LIMIT_KB} KB)`);
     console.log('-------------- | ---------------------------');
     for (const res of results) {
         const icon = res.isOverLimit ? '❌' : '✅';
-        const paddedRoute = res.route.padEnd(14);
-        console.log(`${paddedRoute} | ${res.sizeKB} KB ${icon}`);
+        const missCount = missing.filter((m) => m.route === res.route).length;
+        const note = missCount > 0 ? ` ⚠️ ${missCount} missing` : '';
+        console.log(`${res.route.padEnd(14)} | ${res.sizeKB} KB ${icon}${note}`);
+    }
+
+    let failed = hasFailed;
+
+    if (missing.length > 0) {
+        console.error(`\n❌ Error: ${missing.length} referenced file(s) missing from ${OUT_DIR}/:`);
+        for (const m of missing) {
+            console.error(`   page ${m.route} -> ${m.file}`);
+        }
+        failed = true;
     }
 
     if (hasFailed) {
-        console.error(`\n❌ Error: One or more pages exceed the limit of ${LIMIT_KB} KB gzip.`);
-        process.exit(1); // Выход с кодом 1 ломает CI
-    } else {
-        console.log(`\n✅ Success: All pages are under the limit of ${LIMIT_KB} KB gzip.`);
+        console.error(`\n❌ Error: one or more pages exceed the limit of ${LIMIT_KB} KB gzip.`);
     }
+
+    if (failed) process.exit(1);
+    console.log(`\n✅ Success: all pages are under the limit of ${LIMIT_KB} KB gzip.`);
 }
 
 main().catch((err) => {
-    console.error('An unexpected error occurred:', err);
+    console.error('Unexpected error:', err);
     process.exit(1);
 });